Step-by-step explanation:
x° + 61°+ 68° + 104° = 180°
x° + 129°+104°=180°
x°+133°=180°
x°=180°-133°
x=47°
Answer:
The mean of depth is 12.75cm.
The variance of depth is of 13.02 cm².
Step-by-step explanation:
An uniform probability is a case of probability in which each outcome is equally as likely.
For this situation, we have a lower limit of the distribution that we call a and an upper limit that we call b.
The mean of the uniform distribution is:

The variance of the uniform distribution is given by:

Uniform distribution on the interval (6.5, 19)
This means that: 
So
Mean:

The mean of depth is 12.75cm.
Variance:

The variance of depth is of 13.02 cm².
Answer:
450 m²
Step-by-step explanation:
Area of a circle: 
r is radius and we need to divide the diameter value by 2 to obtain the radius
= 24 / 2 = 12m
Area of a circle = 
= 452.57
≈ 450 m²
Say you needed 2 cups of flour, you would multiply that by 18, 2x18 = 36. So just multiply every ingredient by 18.